METHOD SIGNALING COVER OF FORK IN ROAD Russian patent published in 2017 - IPC G08B25/00 

FIELD: physics, measurement equipment.

SUBSTANCE: invention refers to methods for remote security area monitoring and can be used in cases of single point detection means (DM) application, based on the principles of radio-beam or infra-red detection, for signaling coverage of road forks. The method includes deployment of single point radio-beam or infra-red DM at a road fork, so that its detection area (DA) passes the road fork, DA axis lies along one of the two divergent roads, the section of this road is covered by at least 8/10 of DA length; fixation of the alarm and its duration, determination of the movement direction of the detected intruder according to the algorithm establishing the DM alarm duration attribution to one of the two time ranges calculated analytically for a group of two directions, moving along which an intruder crosses the DA axis, and a group of four directions, the moving along which an intruder crosses the DA along its axis, taking into account the possible speed range of the intruder moving across the fork, DA width and length. The method comprises the preparatory stage including DM deployment as per the statutory scheme and the main stage, which starts with the appearance of the intruder at the fork and intruder entrance to the DM DA. During the main phase, the direction of movement is determined by the developed algorithm.

EFFECT: invention provides the opportunity to clarify the movement direction of the intruder detected on a road fork using only one DM.

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